Jeremy Tregunna
02febadf5d
- Add WAL replicator component with entry capture, buffering, and subscriptions - Implement WAL entry serialization with checksumming - Add batch serialization for network-efficient transfers - Implement proper concurrency control with mutex protection - Add utility functions for entry size estimation - Create comprehensive test suite
27 lines
979 B
Go
27 lines
979 B
Go
package wal
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// LamportClock is an interface for a logical clock based on Lamport timestamps
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// for maintaining causal ordering of events in a distributed system.
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type LamportClock interface {
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// Tick increments the clock and returns the new timestamp value
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Tick() uint64
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// Update updates the clock based on a received timestamp,
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// ensuring the local clock is at least as large as the received timestamp,
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// then increments and returns the new value
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Update(received uint64) uint64
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// Current returns the current timestamp without incrementing the clock
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Current() uint64
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}
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// ReplicationHook is an interface for capturing WAL entries for replication purposes.
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// It provides hook points for the WAL to notify when entries are written.
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type ReplicationHook interface {
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// OnEntryWritten is called when a single WAL entry is written
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OnEntryWritten(entry *Entry)
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// OnBatchWritten is called when a batch of WAL entries is written
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OnBatchWritten(entries []*Entry)
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}
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